Numerical Analaysis of Shaped Holes Filmcooling for Leading Edge of A Gas Turbine Blade

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MAHMOUDI M.; PIRKANDI J.; Shadravan M.; Zahiri Minabi M.R.

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Paper Information

Journal: JOURNAL OF MECHANICAL ENGINEERING Year:2021 | Volume:50 | Issue:4 (93) Page(s): 191-200

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Title

Numerical Analaysis of Shaped Holes Filmcooling for Leading Edge of A Gas Turbine Blade

Author(s)

MAHMOUDI M. | PIRKANDI J. | Shadravan M. | Zahiri Minabi M.R. | Issue Writer Certificate

Keywords

film cooling

gas turbine blade

cooling effectiveness

shaped cooling hole

cooling losses

Abstract

This study investigates the performance of Cylindrical-conical-and clover-shaped film cooling holes of gas turbine blades and the effect of transverse trench on film cooling hole efficiency. The purpose of the research was to achieve the optimal film cooling geometry in order to gain the highest film cooling hole of gas turbine blade efficiency. In this study, a three-dimensional blade simulation that based on k-e realizable turbulence model. Cooling fluid was injected into the mainstream at 30◦ on leading edge stagnation row, with BR=1, 1. 5, 2. After injecting the cooling fluid into Cylindrical-conical-and clover-shaped film cooling holes geometries with and without the presence of transverse trench, it was observed that clover-shaped hole with transverse trench along, at BR=2 and film cooling efficiency of 0. 147 offers the highest film cooling efficiency. Investigation on transverse trench effect for all geometries showed that the presence of trench leads to a higher film cooling efficiency.

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APA: Copy

MAHMOUDI, M., PIRKANDI, J., Shadravan, M., & Zahiri Minabi, M.R.. (2021). Numerical Analaysis of Shaped Holes Filmcooling for Leading Edge of A Gas Turbine Blade. JOURNAL OF MECHANICAL ENGINEERING, 50(4 (93) ), 191-200. SID. https://sid.ir/paper/269784/en

Vancouver: Copy

MAHMOUDI M., PIRKANDI J., Shadravan M., Zahiri Minabi M.R.. Numerical Analaysis of Shaped Holes Filmcooling for Leading Edge of A Gas Turbine Blade. JOURNAL OF MECHANICAL ENGINEERING[Internet]. 2021;50(4 (93) ):191-200. Available from: https://sid.ir/paper/269784/en

IEEE: Copy

M. MAHMOUDI, J. PIRKANDI, M. Shadravan, and M.R. Zahiri Minabi, “Numerical Analaysis of Shaped Holes Filmcooling for Leading Edge of A Gas Turbine Blade,” JOURNAL OF MECHANICAL ENGINEERING, vol. 50, no. 4 (93) , pp. 191–200, 2021, [Online]. Available: https://sid.ir/paper/269784/en

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